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COLEOPHORA, 219 
with fuscous to near the apex, the basal joint pale fuscous, slightly 
thickened, not tufted. Anterior wings narrow, acule, shining, greyish- 
ochreous or greyish-yellow, with the costa narrowly white to near the 
apex, where it is lost in the whitish-ochreous cilia. Posterior wings 
grey, with paler cilia. 
Specimens in which the costa of the anterior wings is only paler, and 
not distinctly white, have been reputed distinct species, but I fancy im- 
properly. 
Very common amongst rushes in June. The larva feeds from 
September to May on the seeds of the rush, frequently completely 
quitting its small whitish case to burrow into the seeds. 
27. annulatella (Nylander), Tengstrém, F. F.-F. 143. 12 (1847) ; 
Zell. ; Sta.—vestianella, Lin.? Fab.? Alis anticis acuminatis, griseo- 
ochreis, inter venas squamis nigris albisque sparsis, costa anguste albida ; 
antennis albis fusco-annulatis, articulo basali fuscesceute, non penicillato. 
Exp. al. 7 lin. 
Head and face greyish-ochreous. Palpi white. Antennze white, an- 
nulated with fuscous, the basal joint pale fuscous, not tufted. Anterior 
wings acuminate, greyish-ochreous, or dark greyish-ochreous, with some 
scattered black and white scales between the veins; the costa is narrowly 
dirty-white to beyond the middle; cilia greyish-ochreous. Posterior 
wings grey, with paler cilia. 
Very common in July and August among Chenopodium and 
Atriplex ; the larva feeds in the autumn on the seeds of those 
plants in a rather short whitish-grey silken case, externally covered 
with grains of sand. 
This species, like many of its congeners, is extremely variable, 
and I strongly suspect that Mavaginella, Lienig (Zell. L. 1. iv. 
353), is only one of the phases of it. 
28. argentula, Zell. L. E. iv. 368 (1849); Sta.; Step. ?—otidi- 
pennella, Hiib. Tin. 433? Dup.? Alis anticis Zatiusculis, albis, venis 
dilatatis ochreis, inderstitiis albis parce fusco-squamatis ; antennis albis 
fusco-annulatis, articulo basali incrassato albido, non penicillato, Bxp. 
al. 6 lin. 
Head and face pale greyish-ochreous. Palpi whitish. Antenne 
white, annulated with fuscous, the basal joint somewhat thickened, 
whitish, not tufted. Anterior wings vather broad, white, with the veins 
broadly ochreous; im the intervening white spaces are a few scattered 
dark fuscous scales; the costa is narrowly white to beyond the middle ; 
cilia greyish-ochreous. Posterior wings grey, with paler cilia. 
Not common; occurs amongst yarrow (Achillea Millefolium) 
in July. The larva feeds in the autumn on the seeds of the 
yarrow in a rather short whitish case; it remains in the larva 
state throughout the winter and spring. 
